Winter Weather Advisory
URGENT - WINTER WEATHER MESSAGE
National Weather Service Salt Lake City UT
658 PM MST Sat Dec 27 2025
UTZ110>113-281200-
/O.CON.KSLC.WW.Y.0030.000000T0000Z-251228T1200Z/
Wasatch Mountains I-80 North-Wasatch Mountains South of I-80-
Western Uinta Mountains-Wasatch Plateau/Book Cliffs-
Including the following locations - Mirror Lake Highway, Alta,
Logan Summit, Scofield, Mantua, Brighton, Moon Lake, and Indian
Canyon
658 PM MST Sat Dec 27 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST SUNDAY...
* WHAT...Snow. Additional snow accumulations up to 1 to 3 inches.
* WHERE...The Wasatch Mountains, Western Uinta Mountains, and
Wasatch Plateau/Book Cliffs.
* WHEN...Until 5 AM MST Sunday.
* IMPACTS...Winter driving conditions are expected.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling. For winter road
conditions from the Utah Department of Transportation, visit
http://www.udottraffic.utah.gov.
For graphical depictions of the snowfall forecast, including
Official NWS Forecast, High End Amount, and Low End Amount, visit
weather.gov/slc/winter.
&&
$$
For more information from the National Weather Service visit
https://weather.gov/saltlakecity.
For information on potential travel impacts visit
http://udottraffic.utah.gov
Webber
URGENT - WINTER WEATHER MESSAGE
National Weather Service Grand Junction CO
112 PM MST Sat Dec 27 2025
COZ003-017-UTZ028-281200-
/O.CON.KGJT.WW.Y.0032.000000T0000Z-251228T1700Z/
Roan and Tavaputs Plateaus-Uncompahgre Plateau and Dallas Divide-
La Sal and Abajo Mountains-
Including the cities of Rio Blanco, Ridgway, Glade Park, Colorado
National Monument, Spanish Valley, La Sal, and Monticello
112 PM MST Sat Dec 27 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM MST SUNDAY
ABOVE 8000 FEET...
* WHAT...Snow expected above 8000 feet. Total snow accumulations
between 4 and 10 inches. Winds gusting as high as 40 mph.
* WHERE...In Colorado, Roan and Tavaputs Plateaus and Uncompahgre
Plateau and Dallas Divide. In Utah, La Sal and Abajo Mountains.
* WHEN...Until 10 AM MST Sunday.
* IMPACTS...Travel could be very difficult at times.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling. The latest road
conditions for the state you are calling from can be obtained by
calling 5 1 1.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Grand Junction CO
112 PM MST Sat Dec 27 2025
COZ018-019-281200-
/O.CON.KGJT.WW.Y.0032.000000T0000Z-251228T1700Z/
Northwest San Juan Mountains-Southwest San Juan Mountains-
Including the cities of Telluride, Lizard Head Pass, Ouray, Red Mtn
Pass, Lake City, Silverton, Molas Pass, Coal Bank Pass, Rico, and
Hesperus
112 PM MST Sat Dec 27 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM MST SUNDAY
ABOVE 9000 FEET...
* WHAT...Snow expected above 9000 feet. Total snow accumulations
between 4 and 8 inches. Winds gusting as high as 45 mph.
* WHERE...Northwest San Juan Mountains and Southwest San Juan
Mountains.
* WHEN...Until 10 AM MST Sunday.
* IMPACTS...Travel could be very difficult at times.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling. The latest road
conditions for the state you are calling from can be obtained by
calling 5 1 1.
&&
$$
Air Stagnation Advisory
URGENT - WEATHER MESSAGE
National Weather Service Boise ID
136 AM MST Sun Dec 28 2025
IDZ012-014-016-028-033-ORZ061>064-282100-
/O.CON.KBOI.AS.Y.0005.251229T0100Z-260101T1700Z/
Lower Treasure Valley-Upper Treasure Valley-Western Magic Valley-
Camas Prairie-Upper Weiser River-Harney County-Baker County-
Malheur County-Oregon Lower Treasure Valley-
Including the cities of Goodrich, Nyssa, Buchanan, Soldier,
Council, Ontario, Boise, Baker, Corral, Burns, Malheur City,
Crane, New Princeton, Blaine, Mesa, Selby, Venator, Fruitvale,
Caldwell, Dunnean, Diamond, Twin Falls, Fairfield, Nampa,
Glendale, Cambridge, Indian Valley, and Hill City
136 AM MST Sun Dec 28 2025 /1236 AM PST Sun Dec 28 2025/
...AIR STAGNATION ADVISORY REMAINS IN EFFECT FROM 6 PM MST /5 PM
PST/ THIS EVENING TO 10 AM MST /9 AM PST/ THURSDAY...
* WHAT...An extended period of stagnant air, with light winds and
little vertical mixing. This is due to an inversion near the
surface that will continue to trap pollutants.
* WHERE...Portions of south central and southwest Idaho and
northeast and southeast Oregon.
* WHEN...From 6 PM MST /5 PM PST/ this evening to 10 AM MST /9 AM
PST/ Thursday.
* IMPACTS...Poor air quality may cause issues for people with
respiratory problems.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Persons with respiratory illness should follow their physicians
advice for dealing with high levels of air pollution during periods
of stagnant air.
&&
$$
JDS
Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service Grand Junction CO
102 AM MST Sun Dec 28 2025
COZ001>014-017>023-UTZ022>025-027>029-291045-
Lower Yampa River Basin-Central Yampa River Basin-
Roan and Tavaputs Plateaus-Elkhead and Park Mountains-
Upper Yampa River Basin-Grand Valley-Debeque to Silt Corridor-
Central Colorado River Basin-Grand and Battlement Mesas-
Gore and Elk Mountains/Central Mountain Valleys-
Central Gunnison and Uncompahgre River Basin-
West Elk and Sawatch Mountains-Flat Tops-Upper Gunnison River Valley-
Uncompahgre Plateau and Dallas Divide-Northwest San Juan Mountains-
Southwest San Juan Mountains-Paradox Valley/Lower Dolores River-
Four Corners/Upper Dolores River-Animas River Basin-
San Juan River Basin-Southeast Utah-Eastern Uinta Mountains-
Eastern Uinta Basin-Tavaputs Plateau-Arches/Grand Flat-
La Sal and Abajo Mountains-Canyonlands/Natural Bridges-
102 AM MST Sun Dec 28 2025
This Hazardous Weather Outlook is for northwest Colorado, southwest
Colorado, west central Colorado, east central Utah, northeast Utah
and southeast Utah.
.DAY ONE...Today and tonight.
Snow showers could impact travel this morning before conditions
improve this afternoon.
.DAYS TWO THROUGH SEVEN...Monday through Saturday.
The probability for widespread hazardous weather is low.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected today or tonight, however
spotters are encouraged to report snowfall amounts to the
National Weather Service in Grand Junction.
$$
